Prandtl-Meyer expansion of ionized argon with differing electron and atom temperatures
Kramer, Kenneth L
Wierum, Frederick A.
Master of Science
The sharp corner expansion of ionized argon with differing electron and atom temperatures has been calculated. The thermodynamic equations which apply for a two-temperature gas were derived. An energy balance on the electrons was performed to obtain a functional relationship between Ta, Te, p , and a, The governing quasi-linear partial differential equations were solved by the Method of Characteristics. The results obtained demonstrate that while Te se Ta throughout the expansion fan, the pressure, temperature, and degree of ionization are underestimated if the two temperatures are assumed equal during the solution of the problem.